Distinction between sodium chlorite and sodium hypochlorite by ion-chromatography

A new method for distinguishing between sodium chlorite and ion chromatography is described. Under the operating condition (gel TSK DEAE-5PW glass column 8.0 mm diameter x 7.5 cm with an aqueous solution containing 20 mM sodium carbonate, 10 mM sodium hydroxide and ethylenediamine 4) And an electrochemical detector (Toso EC-8000, -200 mV, Ag electrode) are clearly separated and detected chlorite and hypochlorite anions and the retention times (tR) are 6.0 and 4.6 min.